Great question! No worries! Your software is up to date. There has not been an additional update since the May release. As the previous poster had referenced 4.4, I presume that is either the 4.4 version of an app or the May 2014 update that you have currently. We are awaiting further clarification.
You can keep up to date with when updates for the operating system become available here: http://vz.to/1xo7nDL .
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